Hexagon head bolt DIN 931 / ISO 4014, M 20x70, hexagon 30 mm, shank 24 mm, stainless steel A4
Outdoors and in wet areas large bolts must still come loose after years. This hexagon head bolt M 20x70 to DIN 931 made of stainless steel A4 stays resistant without a coating. The plain shank measures 24 mm and the thread 46 mm. The hexagon head has 30 mm across flats and a height of 12.5 mm.
Advantages
- Head height of 12.5 mm keeps the overall height of the joint low.
- Thread length of 46 mm to DIN 931, sufficient for a nut and a washer in size M 20.
- Stainless steel A4 also withstands chloride-bearing water, which suits outdoor positions and areas close to cleaning agents.
- Plain shank of 24 mm within 70 mm of total length, which places the shear plane in the full shank cross section instead of the thread.
- Hexagon head with 30 mm across flats, so the tightening torque can be applied with an ordinary open-ended or ring spanner.
Technical data
| Feature | Value |
|---|---|
| Standard | DIN 931 / ISO 4014 |
| Material | stainless steel A4 |
| Thread D | M 20 |
| Length L [mm] | 70 |
| Head height K [mm] | 12.5 |
| Width across flats S to DIN 931 [mm] | 30 |
| Width across flats S to ISO 4014 [mm] | 30 |
| Thread length B [mm] | 46 |
| Shank length [mm] | 24 |
Applications
Flange joints in machine building where the 24 mm shank aligns the parts against each other. Bolting of bearing blocks and brackets with a through hole in size M 20. Building of fixtures and clamping plates where the head with 30 mm across flats must stay freely accessible. Releasable joints that are opened several times for maintenance.
Standards and conformity
The bolt is dimensioned to DIN 931 and ISO 4014. The width across flats is 30 mm to DIN 931 and 30 mm to ISO 4014. The material is stainless steel A4.
| Weight | 0.230000 |
|---|---|
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | 931-M20X70 ES4A |
| EAN | 4050571962586 |
| Zolltarifnummer | 73181900 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Material | Edelstahl A4 |
| Norm | DIN 931, DIN EN ISO 4014 |
